138
The goal is when the machine enters the lane and the whiskers just miss the guide rollers
never have a chance to high-center the machine and cause a travel error. The whisker
should just miss the foul lights and seat the machine on the lane correctly without hearing a
guide roller snap over the edge of the lane.
The whiskers also detect when the machine has traveled too far or too short so they are
always adjusting the Lane to Lane settings to keep your Walker entering the lane as close to
perfectly as possible.
Adjusting the On Lane Sensor (OLS)
Adjusting the OLS sensor is done with the machine in the
upright transport position, with lids removed.
Locate the allen head screw through hole located just above
and to the left of the OLS wheel as shown to the right. This
screw is used to pinch the shaft tight, loosen but do not remove
screw.
Now, from the top side of the machine, locate the adjusting
screw that is threaded through the arm and the spring assembly
on the floor plate. The correct adjustment should be when the rear of the machine drops
onto the lane, and is fully setting on the lane; the input light
(0CH00) should come on simultaneously.
To make the adjustment, you will need to access the adjusting
screw through the top of the machine. If the OLS sensor needs
to activate sooner, turn the screw CLOCKWISE and if the OLS
sensor needs to read later, then turn the screw COUNTER-
CLOCKWISE.
Once the adjustment is made, verify with the input light again.
When the sensor is adjusted properly, tighten the OLS arm screw from the bottom of the
machine and reinstall the lid assembly.
Drive Board Adjustments
There are only two adjustments on the motor controller board that may need to be fine-
tuned. They are the Deceleration (
DECEL
) and Acceleration (
ACCEL
) trim pots.
The
Acceleration
trim pot needs to be adjusted for a smooth acceleration from one speed to
the next without sudden jerks of the machine when shifting speeds. Turning the trim pot
clockwise will increase the ACCEL time and turning the trim pot counter-clockwise will
Adjusting
Pinch Screw
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